Research Keyword: carbon catabolite repression

Fungus-mediated bacterial survival and migration enhance wood lignin degradation

Researchers discovered that certain bacteria living in decaying wood can travel along fungal threads and help fungi break down tough lignin more efficiently. The bacteria consume sugar and aromatic compounds produced by the fungi, which removes substances that would otherwise slow down the fungal degradation process. This mutualistic partnership between bacteria and fungi shows how nature optimizes wood decomposition in forests, with potential applications for improving biomass conversion in industrial settings.

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Pigment Formation by Monascus pilosus DBM 4361 in Submerged Liquid Culture

Scientists studied how to produce natural yellow, orange, and red pigments from the fungus Monascus pilosus in liquid culture. They found that the type of sugar and nitrogen used in the fermentation significantly affects pigment production. Interestingly, glucose actually reduces pigment formation through a process called carbon catabolite repression. M. pilosus offers a safer alternative to other Monascus species because it does not produce the harmful toxin citrinin, making it suitable for use in food products.

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